The unique mounting method enable you to install the shelf very easily and no screws, connectors, or tracks are visible. As the shelf is locked to the shelf bracket and the shelf bracket is locked to the wall, you can create a very strong and firm shelving system. This shelf need to be mounted into wall studs, it will not mount into cement or thick plastered walls. The metal bracket can support up to 150 lbs when mounted into studs per shelf. They are made from wood or MDF, with white finish, black finish, pink finish, blue finish, violet finish and so on. The shelves can also be laminated with maple wood grain veneer, beech wood grain veneer and walnut wood grain veneer. These hidden bracket shelves are easy to install in a few minutes, come with all hardware. You can hang several shelves to create library, display and highlight a favorite collectible.